Purpose: The purpose of this study is to find the factors that can affect the assessment on severity of cold hypersensitivity on hands and feet by comparing the temperature distribution among the seasons, the scan time and the laboratory temperature. Methods: We compared the temperature distribution of the arms and legs, according to the season and scan time on the basis of the results of Digital Infrared Thermal Imaging(DITI) conducted on 178 women who visited the hospital in summer and winter. We evaluated the correlation between the laboratory temperature and temperature distribution of the arms and legs. Results: The temperature distribution of the arms and legs was significantly different between summer and winter. The temperature distribution of the arms and legs was not significantly different according to the scan time. There was no significant correlation between laboratory temperature and the temperature distribution of the arms and legs in summer and winter. Conclusions: The diagnostic criteria to assess the severity of cold hypersensitivity on hands and feet need to be changed according to the season. The scan time and the small variation(24℃∼27℃) of the laboratory temperature doesn`t affect the assessment of severity of cold hypersensitivity.